But powerful magnets are usually large and energy hungry. Chukun Gao at the Swiss Federal Institute of Technology in Zurich and her colleagues sought to build a small ultra-strong magnet that would ...

Imagine not having to pay your electricity bills because a gigantic magnet surrounding the Earth produced power. Well, Earth indeed has a magnet like this, which is its magnetic field. When the fiery ...

For years, scientists have been trying to replicate the concept of nuclear fusion — the phenomenon that keeps the Sun and other stars alive — and turn it into a working reactor on Earth that can ...